Hello there!

I tried to upgrade the firmware of a Snom M900 to Version 740, Branch 104, which appears to me to be the newest version. The previously installed version was 610 Branch 03. Unfortunately, after rebooting the DECT station web interface is not available anymore. The station blinks with red light. I factory reset the device, pressing the reset button for 10 seconds, which resulted in the red blinking light becoming permanent red light. After some time, it gets green, then red blinking again. When the light is green, we can ping the device. At all other times, we cannot ping it.

I have already installed other M900 stations with the firmware version 730, branch 104, in the same network and there weren't any issues with those.